The Night Group of the Tuscaloosa Genealogical Society, 6:30 p.m., Tuscaloosa Public Library Rotary Room, 1801 Jack Warner Parkway. Show and Tell for attendees to share genealogy stories, artifacts and discoveries.Superskate Lockdown: 7 p.m.-6 a.m. New Year's Eve, 5900 Mcfarland Blvd E. New Year's Eve party features music, favors and a countdown to 2008. Teens will be "locked in" after midnight, unable to leave without a parent or guardian coming in to pick them up. Admission is $15. Call 205-758-7465.Christmas At the Park: 6-9:30 p.m., Guthrie Smith Park, Fayette. Admission is $1 per car. 205-932-4327.TUESDAY